WO2010064753A1 - Leakage detection apparatus - Google Patents

Leakage detection apparatus Download PDF

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Publication number
WO2010064753A1
WO2010064753A1 PCT/KR2008/007408 KR2008007408W WO2010064753A1 WO 2010064753 A1 WO2010064753 A1 WO 2010064753A1 KR 2008007408 W KR2008007408 W KR 2008007408W WO 2010064753 A1 WO2010064753 A1 WO 2010064753A1
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WO
WIPO (PCT)
Prior art keywords
resistance
leakage
line
conductive line
detection apparatus
Prior art date
Application number
PCT/KR2008/007408
Other languages
French (fr)
Inventor
Hong Geun Yu
Original Assignee
Yumin System Technology Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yumin System Technology Co., Ltd. filed Critical Yumin System Technology Co., Ltd.
Publication of WO2010064753A1 publication Critical patent/WO2010064753A1/en

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Classifications

    • 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
    • G01M3/165—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means by means of cables or similar elongated devices, e.g. tapes

Definitions

  • the present invention relates to a leakage detection apparatus, and in particular to a leakage detection apparatus which has a simple structure and is able to more reliably detect a leakage position in an apparatus which is configured to detect leakage by directly attaching to a leaking position(wall, pipe, facility or the like) in a tape type.
  • the above leakage sensor apparatus is made in a tape shape and includes a plurality of conductive lines formed on an upper surface of the same and arranged in a longitudinal direction for detecting leakage.
  • the conductive lines are conducted by means of leakage, so an alarm is generated from a remote controller.
  • the leakage detection apparatus prevents moisture from being ionized by alternately supplying electric power to the detection lines in a normal direction and a reverse direction. It is possible to accurately detect a leakage position using a resistance value, which is detected in a normal direction and a reverse direction, respectively.
  • a leakage detection apparatus which comprises a conductive line layer which includes a conductive line which has a certain conductivity in a longitudinal direction; a first resistance line which is spaced apart from the conductive line while running parallel with the conductive line in a longitudinal direction; and a second resistance line which is spaced apart from the first resistance line while running parallel with the first resistance line in a longitudinal direction and is electrically connected with the first resistance line at a certain position; and a controller which allows an electric power to be alternately supplied to the first and second resistance lines, and computes a distance from a leakage position by obtaining a resistance value from the conductive line when a leakage occurs.
  • the leakage detection apparatus it is possible to reliably detect a leakage with the helps of two or three conductive lines. It is possible to prevent a resistance value from being changed as the moisture is ionized by alternately supplying the power to conductive lines in a normal direction and a reverse direction, respectively, for thereby accurately calculating the distance of leakage position.
  • the distance of leakage position can be more reliably and accurately calculated by computing the leakage position in a normal direction and a reverse direction from the resistance values obtained from the power, which is alternately supplied.
  • Figure 1 is a cross sectional view according to the present invention.
  • Figure 2 is a view illustrating a pattern of a conductive line layer according to the present invention.
  • Figure 3 is a view of a circuit construction of a pattern for a leakage detection according to the present invention.
  • Figure 4 is a view illustrating a construction of a protection film layer according to the present invention.
  • Figure 5 is a view illustrating a connection state between a controller and another tape according to the present invention.
  • Figure 6 is a block diagram of a circuit of a controller according to the present invention.
  • Figure 7 is a view of another example of a conductive line layer according to the present invention. Best Mode for Carrying Out the Invention
  • a leakage detection apparatus which is formed in a tape shape and includes a base film layer, a conductive line layer, and a protection film layer, which are sequentially stacked in an upward direction for thereby detecting moisture due to a leakage
  • a leakage detection apparatus which comprises a conductive line layer which includes a conductive line which has a certain conductivity in a longitudinal direction; a first resistance line which is spaced apart from the conductive line while running parallel with the conductive line in a longitudinal direction; and a second resistance line which is spaced apart from the first resistance line while running parallel with the first resistance line in a longitudinal direction and is electrically connected with the first resistance line at a certain position; and a controller which allows an electric power to be alternately supplied to the first and second resistance lines, and computes a distance from a leakage position by obtaining a resistance value from the conductive line when a leakage occurs.
  • FIG. 1 is a cross sectional view illustrating a moisture detection tape 100 according to the present invention.
  • the moisture detection tape 100 comprises an adhesive layer 200, a base film layer 300, a conductive line layer 400, and a protection film layer 500, which are stacked from the bottom of the same in an upper direction in a sequence.
  • the adhesive layer 200 is attached to a leakage position and is made in an adhesive tape type.
  • the base film layer 300 is configured so that a conductive line layer 400 is formed on its upper side, and is preferably formed of PET, PE, PTFE, PVC or other Teflon materials for forming a pattern of an insulation and conductive line layer in a printing method.
  • the conductive line layer 400 is formed of a plurality of conductive lines and a plurality of resistance lines and is arranged on an upper surface of the base film layer 300 in a strip shape as being parallel and being spaced apart in a longitudinal direction of the moisture detection tape 100.
  • the protection film layer 39 is stacked on an upper side of the conductive line layer
  • Figure 2 is a view illustrating a pattern formation state of the conductive line layer
  • first resistance line 420 which is spaced apart from the conductive line 410 while running parallel with the conductive line
  • second resistance line 430 which is spaced apart from the first resistance line 420 while winning parallel with the first resistance line 420.
  • Parts (preferably ends) of the first and second resistance lines 420 and 430 are electrically connected with each other.
  • Terminals 411, 421 and 431 are connected with the front ends of the conductive line
  • the conductive line 410 is made of a pure conductive material such as silver or the like and has a resistance of 0 ⁇ 20ohm.
  • the resistance lines 420 and 430 preferably have about 50 through 500ohm.
  • the conductive line 410 and the resistance lines 420 and 430 form a leakage detection circuit.
  • the electric power of the normal direction and the reverse direction is alternately supplied to the resistance line terminals 421 and 431, respectively.
  • the controller 900 receives electric power from the conductive line terminal 411 for thereby computing resistance values with respect to each direction.
  • Figure 4 is a view illustrating the construction of a protection film layer 500.
  • the protection film layer 500 is stacked on an upper side of the conductive line layer 400, since it is separated from the outside, the leakage might not be detected in the conductive line layer 400. So, a plurality of holes 510 are formed at regular intervals.
  • the holes 510 are preferably formed in elongated groove shapes, circular groove shapes or other shapes in the width direction of the moisture detection tape 100 for thereby allowing the conductive line 410 and the first resistance line 420 to be exposed to the outside through the holes.
  • the interval between the holes 510 is preferably 0.5 through 1.5cm.
  • FIG. 5 is a view illustrating a connection state that a plurality of moisture detection tapes 100 are extended and connected, and a connection state with the controller 900.
  • the moisture detection tapes 100 are connected with each other through a connector 700.
  • the conductive line layer 400 and the signal line 800 are connected through the connector 600 and are connected with the controller 900.
  • the connector 600 is connected with a conductive line terminal 411 and resistance line terminals 421 and 431, respectively.
  • a moisture detection tape 100 is attached to a certain portion where a moisture detection is needed.
  • the moisture detection tape 100 is equipped with an adhesive layer 200 in an underneath surface, it can be easily attached.
  • the processor 910 compares the voltage value and the current value inputted from v3 with the resistance value and the voltage value inputted from v4 for thereby more reliably detecting a leakage position.
  • the distance is computed based on the resistance value and the voltage value by receiving the resistance value and the voltage value from the processor 910, and the processor 910 compares the computed values with the previously set values, and the computed distance is displayed on a display unit 930, and an alarm is outputted through an alarm generation unit 940.
  • FIG 7 is a view illustrating another pattern formation state of the conductive line layer 400.
  • the processor 910 supplies the electric power al- ternately in the normal direction and the reverse direction.
  • the processor 910 obtains a voltage value and a resistance value from the resistance line terminals 421 and 431 for thereby computing distances.
  • the leakage detection apparatus it is possible to reliably detect a leakage with the helps of two or three conductive lines. It is possible to prevent a resistance value from being changed as the moisture is ionized by alternately supplying the power to conductive lines in a normal direction and a reverse direction, respectively, for thereby accurately calculating the distance of leakage position.
  • the distance of leakage position can be more reliably and accurately calculated by computing the leakage position in a normal direction and a reverse direction from the resistance values obtained from the power, which is alternately supplied.

Abstract

A leakage detection apparatus is disclosed, which comprises a conductive line layer which includes a conductive line which has a certain conductivity in a longitudinal direction; a first resistance line which is spaced apart from the conductive line while running parallel with the conductive line in a longitudinal direction; and a second resistance line which is spaced apart from the first resistance line while running parallel with the first resistance line in a longitudinal direction and is electrically connected with the first resistance line at a certain position; and a controller which allows an electric power to be alternately supplied to the first and second resistance lines, and computes a distance from a leakage position by obtaining a resistance value from the conductive line when a leakage occurs.

Description

Description
LEAKAGE DETECTION APPARATUS
Technical Field
[1] The present invention relates to a leakage detection apparatus, and in particular to a leakage detection apparatus which has a simple structure and is able to more reliably detect a leakage position in an apparatus which is configured to detect leakage by directly attaching to a leaking position(wall, pipe, facility or the like) in a tape type. Background Art
[2] The applicant of the present invention filed a moisture detection leakage sensor apparatus of a tape type in the Korean patent registration number 10-0827385 registered on April 28, 2008.
[3] The above leakage sensor apparatus is made in a tape shape and includes a plurality of conductive lines formed on an upper surface of the same and arranged in a longitudinal direction for detecting leakage. When leakage occurs in the conductive line, the conductive lines are conducted by means of leakage, so an alarm is generated from a remote controller.
[4] The summed resistance of each resistor up to a leakage position is judged by means of a controller for thereby calculating a distance of the leakage.
[5] However, since the resistors are connected at regular intervals in the conventional tape type moisture detection leakage sensor apparatus, when the above intervals are wider, it is impossible to reliably detect the leakage. In addition, a lot of conductive lines are disadvantageously needed for installing a plurality of resistors.
[6] In addition, since electric power is supplied in one direction in the conductive lines, the current flows in one direction. At this time, the moisture contained in the leakage might be ionized, so the resistance value increases, which leads to an error in a distance measurement.
[7] So, since the position of leakage cannot be accurately judged, the reliability of the apparatus is degraded. Disclosure of Invention
Technical Problem
[8] Accordingly, it is an object of the present invention to provide a leakage detection apparatus, which overcomes the problems found in the conventional art and minimizes the amount of detection lines used in a tape type leakage detection apparatus. The leakage detection apparatus prevents moisture from being ionized by alternately supplying electric power to the detection lines in a normal direction and a reverse direction. It is possible to accurately detect a leakage position using a resistance value, which is detected in a normal direction and a reverse direction, respectively. Technical Solution
[9] To achieve the above objects, in a leakage detection apparatus which is formed in a tape shape and includes a base film layer, a conductive line layer, and a protection film layer, which are sequentially stacked in an upward direction for thereby detecting moisture due to a leakage, there is provided a leakage detection apparatus which comprises a conductive line layer which includes a conductive line which has a certain conductivity in a longitudinal direction; a first resistance line which is spaced apart from the conductive line while running parallel with the conductive line in a longitudinal direction; and a second resistance line which is spaced apart from the first resistance line while running parallel with the first resistance line in a longitudinal direction and is electrically connected with the first resistance line at a certain position; and a controller which allows an electric power to be alternately supplied to the first and second resistance lines, and computes a distance from a leakage position by obtaining a resistance value from the conductive line when a leakage occurs.
Advantageous Effects
[10] In the leakage detection apparatus according to the present invention, it is possible to reliably detect a leakage with the helps of two or three conductive lines. It is possible to prevent a resistance value from being changed as the moisture is ionized by alternately supplying the power to conductive lines in a normal direction and a reverse direction, respectively, for thereby accurately calculating the distance of leakage position.
[11] In addition, the distance of leakage position can be more reliably and accurately calculated by computing the leakage position in a normal direction and a reverse direction from the resistance values obtained from the power, which is alternately supplied. Brief Description of the Drawings
[12] Figure 1 is a cross sectional view according to the present invention.
[13] Figure 2 is a view illustrating a pattern of a conductive line layer according to the present invention.
[14] Figure 3 is a view of a circuit construction of a pattern for a leakage detection according to the present invention.
[15] Figure 4 is a view illustrating a construction of a protection film layer according to the present invention.
[16] Figure 5 is a view illustrating a connection state between a controller and another tape according to the present invention.
[17] Figure 6 is a block diagram of a circuit of a controller according to the present invention.
[18] Figure 7 is a view of another example of a conductive line layer according to the present invention. Best Mode for Carrying Out the Invention
[19] In a leakage detection apparatus which is formed in a tape shape and includes a base film layer, a conductive line layer, and a protection film layer, which are sequentially stacked in an upward direction for thereby detecting moisture due to a leakage, there is provided a leakage detection apparatus which comprises a conductive line layer which includes a conductive line which has a certain conductivity in a longitudinal direction; a first resistance line which is spaced apart from the conductive line while running parallel with the conductive line in a longitudinal direction; and a second resistance line which is spaced apart from the first resistance line while running parallel with the first resistance line in a longitudinal direction and is electrically connected with the first resistance line at a certain position; and a controller which allows an electric power to be alternately supplied to the first and second resistance lines, and computes a distance from a leakage position by obtaining a resistance value from the conductive line when a leakage occurs. Mode for the Invention
[20] The leakage detection apparatus according to the present invention will be described with reference to the accompanying drawings.
[21] Figure 1 is a cross sectional view illustrating a moisture detection tape 100 according to the present invention. The moisture detection tape 100 comprises an adhesive layer 200, a base film layer 300, a conductive line layer 400, and a protection film layer 500, which are stacked from the bottom of the same in an upper direction in a sequence.
[22] The adhesive layer 200 is attached to a leakage position and is made in an adhesive tape type.
[23] The base film layer 300 is configured so that a conductive line layer 400 is formed on its upper side, and is preferably formed of PET, PE, PTFE, PVC or other Teflon materials for forming a pattern of an insulation and conductive line layer in a printing method.
[24] The conductive line layer 400 is formed of a plurality of conductive lines and a plurality of resistance lines and is arranged on an upper surface of the base film layer 300 in a strip shape as being parallel and being spaced apart in a longitudinal direction of the moisture detection tape 100.
[25] The protection film layer 39 is stacked on an upper side of the conductive line layer
400 for thereby protecting a pattern of the conductive line layer from an external impact and is preferably formed of PET, PE, PVC or other Teflon materials. [26] Figure 2 is a view illustrating a pattern formation state of the conductive line layer
400 which includes a conductive line 410 printed with a silver compound, a first resistance line 420 which is spaced apart from the conductive line 410 while running parallel with the conductive line, and a second resistance line 430 which is spaced apart from the first resistance line 420 while winning parallel with the first resistance line 420. Parts (preferably ends) of the first and second resistance lines 420 and 430 are electrically connected with each other.
[27] Terminals 411, 421 and 431 are connected with the front ends of the conductive line
410 and the resistance line 420 for receiving electric power from the controller 900.
[28] The conductive line 410 is made of a pure conductive material such as silver or the like and has a resistance of 0~20ohm. The resistance lines 420 and 430 preferably have about 50 through 500ohm.
[29] As shown in Figure 3, the conductive line 410 and the resistance lines 420 and 430 form a leakage detection circuit. The electric power of the normal direction and the reverse direction is alternately supplied to the resistance line terminals 421 and 431, respectively. The controller 900 receives electric power from the conductive line terminal 411 for thereby computing resistance values with respect to each direction.
[30] Figure 4 is a view illustrating the construction of a protection film layer 500. When the protection film layer 500 is stacked on an upper side of the conductive line layer 400, since it is separated from the outside, the leakage might not be detected in the conductive line layer 400. So, a plurality of holes 510 are formed at regular intervals.
[31] The holes 510 are preferably formed in elongated groove shapes, circular groove shapes or other shapes in the width direction of the moisture detection tape 100 for thereby allowing the conductive line 410 and the first resistance line 420 to be exposed to the outside through the holes. Here, the interval between the holes 510 is preferably 0.5 through 1.5cm.
[32] Figure 5 is a view illustrating a connection state that a plurality of moisture detection tapes 100 are extended and connected, and a connection state with the controller 900. When the length for a leakage detection is long, the moisture detection tapes 100 are connected with each other through a connector 700.
[33] The conductive line layer 400 and the signal line 800 are connected through the connector 600 and are connected with the controller 900.
[34] The connector 600 is connected with a conductive line terminal 411 and resistance line terminals 421 and 431, respectively.
[35] The operation for detecting leakage will be described.
[36] First, a moisture detection tape 100 is attached to a certain portion where a moisture detection is needed.
[37] Since the moisture detection tape 100 is equipped with an adhesive layer 200 in an underneath surface, it can be easily attached.
[38] A few tens of voltages is applied to the resistance lines 420 and 430, respectively, and as shown in Figure 6, the processor 910 of the controller 900 controls a power unit 920 while allowing voltages to alternately flow in the first and second resistance lines 420 and 430 at predetermined constant cycles by controlling the power unit 920.
[39] Since the first and second resistance lines 420 and 430 are electrically connected, the normal direction voltage vl and the reverse direction voltage v2 alternately flow at predetermined constant cycles as shown in the circuit construction of Figure 3.
[40] As leakage occurs, when water, chemical solution, other moisture(conductivity) decreases in a certain portion of an upper side of the moisture detection tape 100, as shown in Figure 3, a closed circuit is formed by means of the leakage 440 between the conductive line 410 and the first resistance line 420.
[41] In this case, a resistance value and a voltage change depending on the position of the leakage 400. When the normal direction voltage vl is applied, the closed circuit of v3 is formed, and the resistance value based on the above closed circuit is supplied to the processor 910 of the controller 900 through the conductive line terminal 411. When the reverse direction voltage v2 is applied, the closed circuit of v4 is formed, and the resistance value of the closed circuit is supplied to the processor 910 through the conductive line terminal 411.
[42] When the normal and reverse direction voltages vl and v2 are alternately supplied, the ionization of the moisture contained in the leakage is prevented, so the resistance value in the leakage position does not change for thereby obtaining a constant resistance value.
[43] Since the processor 910 obtain resistance values and voltage values two times by different ways through the closes circuits of v3 and v4, a more reliable detection on the leakage position is obtained.
[44] Since the lengths of the resistance lines 420 and 430 are known, the processor 910 compares the voltage value and the current value inputted from v3 with the resistance value and the voltage value inputted from v4 for thereby more reliably detecting a leakage position.
[45] So, the distance is computed based on the resistance value and the voltage value by receiving the resistance value and the voltage value from the processor 910, and the processor 910 compares the computed values with the previously set values, and the computed distance is displayed on a display unit 930, and an alarm is outputted through an alarm generation unit 940.
[46] Figure 7 is a view illustrating another pattern formation state of the conductive line layer 400. In this construction, only two resistance lines 420 and 430 are formed while removing the conductive line 410. The processor 910 supplies the electric power al- ternately in the normal direction and the reverse direction. When a leakage is detected in the first resistance line 420 and the second resistance line 430, the processor 910 obtains a voltage value and a resistance value from the resistance line terminals 421 and 431 for thereby computing distances. Industrial Applicability
[47] In the leakage detection apparatus according to the present invention, it is possible to reliably detect a leakage with the helps of two or three conductive lines. It is possible to prevent a resistance value from being changed as the moisture is ionized by alternately supplying the power to conductive lines in a normal direction and a reverse direction, respectively, for thereby accurately calculating the distance of leakage position.
[48] In addition, the distance of leakage position can be more reliably and accurately calculated by computing the leakage position in a normal direction and a reverse direction from the resistance values obtained from the power, which is alternately supplied. Sequence Listing
[49] moisture detection, resistance line, conductive line, leakage
[50]
[51]

Claims

Claims
[1] In a leakage detection apparatus which is formed in a tape shape and includes a base film layer, a conductive line layer, and a protection film layer, which are sequentially stacked in an upward direction for thereby detecting moisture due to a leakage, a leakage detection apparatus, comprising: a conductive line layer which includes: a conductive line which has a certain conductivity in a longitudinal direction; a first resistance line which is spaced apart from the conductive line while running parallel with the conductive line in a longitudinal direction; and a second resistance line which is spaced apart from the first resistance line while running parallel with the first resistance line in a longitudinal direction and is electrically connected with the first resistance line at a certain position; and a controller which allows an electric power to be alternately supplied to the first and second resistance lines, and computes a distance from a leakage position by obtaining a resistance value from the conductive line when a leakage occurs.
[2] In a leakage detection apparatus which is formed in a tape shape and includes a base film layer, a conductive line layer, and a protection film layer, which are sequentially stacked in an upward direction for thereby detecting moisture due to a leakage, a leakage detection apparatus, comprising: a conductive line layer which includes a first resistance line and a second resistance line while running parallel with each other in a longitudinal direction; and a controller which allows an electric power to be alternately supplied to the first and second resistance lines, and computes a distance from a leakage position by obtaining a resistance value from the alternately supplied electric power when a leakage occurs.
PCT/KR2008/007408 2008-12-02 2008-12-15 Leakage detection apparatus WO2010064753A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080121212A KR101445310B1 (en) 2008-12-02 2008-12-02 Leak Sensing Apparatus
KR10-2008-0121212 2008-12-02

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WO2010064753A1 true WO2010064753A1 (en) 2010-06-10

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Cited By (5)

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EP2863470A4 (en) * 2012-06-15 2016-01-20 Ngk Insulators Ltd Insulating container for battery, battery control device, and battery-failure detection method
US9719951B1 (en) 2013-07-12 2017-08-01 Helvetia Wireless Llc Method and apparatus for moisture detection
US9910003B1 (en) 2014-12-18 2018-03-06 Helvetia Wireless, Llc Methods and apparatus for a moisture detector
IT201800006155A1 (en) * 2018-06-08 2019-12-08 SENSOR TAPE TO DETERMINE A STATE OF INFILTRATION / PRESENCE OF WATER IN A ROOF
WO2020239739A1 (en) * 2019-05-27 2020-12-03 Saint-Gobain Placo System for detecting incidents in buildings or vessels

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WO2015064807A1 (en) * 2013-10-29 2015-05-07 (주)유민에쓰티 Leak detection device and remote monitoring system using same
KR102344636B1 (en) 2020-11-02 2021-12-29 (주)유민에쓰티 Capacitive leak detecting apparatus

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Cited By (9)

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Publication number Priority date Publication date Assignee Title
EP2863470A4 (en) * 2012-06-15 2016-01-20 Ngk Insulators Ltd Insulating container for battery, battery control device, and battery-failure detection method
US10147976B2 (en) 2012-06-15 2018-12-04 Ngk Insulators, Ltd. Insulating container for battery, battery control device, and battery-failure detection method
US9719951B1 (en) 2013-07-12 2017-08-01 Helvetia Wireless Llc Method and apparatus for moisture detection
US9910003B1 (en) 2014-12-18 2018-03-06 Helvetia Wireless, Llc Methods and apparatus for a moisture detector
US10191003B1 (en) 2014-12-18 2019-01-29 Helvetia Wireless Llc Methods and apparatus for a moisture detector
IT201800006155A1 (en) * 2018-06-08 2019-12-08 SENSOR TAPE TO DETERMINE A STATE OF INFILTRATION / PRESENCE OF WATER IN A ROOF
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WO2020239739A1 (en) * 2019-05-27 2020-12-03 Saint-Gobain Placo System for detecting incidents in buildings or vessels
FR3096779A1 (en) * 2019-05-27 2020-12-04 Saint-Gobain Placo CLAIMS DETECTION SYSTEM IN BUILDINGS

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