KR20170019582A - Leak Sensor for Liquide leakage - Google Patents
Leak Sensor for Liquide leakage Download PDFInfo
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- KR20170019582A KR20170019582A KR1020150113571A KR20150113571A KR20170019582A KR 20170019582 A KR20170019582 A KR 20170019582A KR 1020150113571 A KR1020150113571 A KR 1020150113571A KR 20150113571 A KR20150113571 A KR 20150113571A KR 20170019582 A KR20170019582 A KR 20170019582A
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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
- G01M3/165—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
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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
- G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N21/80—Indicating pH value
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- 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
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
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- G—PHYSICS
- G12—INSTRUMENT DETAILS
- G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
- G12B17/00—Screening
- G12B17/02—Screening from electric or magnetic fields, e.g. radio waves
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- Life Sciences & Earth Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Plasma & Fusion (AREA)
- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
A leak detection sensor is provided. The leakage detection sensor comprises: a base film layer extending in a first direction in a tape form; a noise blocking film layer formed on the base film layer to block external electromagnetic waves; A first insulation film layer formed on the first insulating film layer, the first to fourth conductor lines extending in the first direction, and the second insulation film covering at least a part of the first to fourth conductor lines, Wherein the first to fourth conductor lines are disposed side by side and the first gap between the first and second conductor lines is wider than the second gap between the second and third conductor lines They are spaced apart at regular intervals.
Description
The present invention relates to leak detection sensors.
Liquid materials of various forms and properties such as water and chemical agents are being used at industrial sites or offices. These liquid materials are transported and used by piping or containers. At this time, if the liquid material leaks to the outside, the operator or the persons or objects in the vicinity may be in a dangerous or difficult situation.
Various types of leak detection sensors for detecting leakage and leakage of such liquid materials have been used. Typical examples are cable-type leakage detection sensors, band- and tape-type leakage detection sensors, and modular leakage detection sensors.
The cable type leakage detection sensor or the band and tape type leakage detection sensor is a leakage detection sensor that detects leaks of various liquid substances (water, medicine, etc.) and informs the point where the liquid material leaks accurately and quickly. The electric current flowing along the conductor can be detected at the sensing line by the resistance of the leaked liquid material (potential difference is generated), so that leakage and leakage can be confirmed and the point of occurrence can be confirmed.
However, the conventional cable type leak detecting sensor or band and tape type leak detecting sensor has a problem that the sensing part is exposed to the outside, so that it is vulnerable to disturbance of external noise, and the sensor malfunctions.
Korean Patent Laid-Open Publication No. 2011-0053704 discloses a leakage and rupture sensing device for pipes.
The object of the present invention is to provide a structure capable of installing a sensor without space limitation by using a band, tape, or cable type sensing sensor in detecting leakage and leakage of a liquid material, And it is also possible to determine whether or not the sensor is alkaline or acidic.
Another object of the present invention is to provide a leakage detection sensor using a noise blocking film (shielding film) so as to prevent a sensor from malfunctioning due to disturbance of an external electromagnetic wave in a band, tape, or cable type sensor .
The problems to be solved by the present invention are not limited to the above-mentioned technical problems, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.
According to an aspect of the present invention, there is provided a leakage detection sensor including a base film layer extending in a first direction in a tape form, a noise blocking film layer formed on the base film layer and shielding external electromagnetic waves, A first insulating film layer formed on the noise blocking film layer and having an insulating property, first to fourth conductor lines formed on the first insulating film layer and extending in the first direction, And a second insulating film layer covering at least a portion of the fourth conductor line, wherein the first to fourth conductor lines are arranged side by side, and the first gap between the first and second conductor lines is the same as the first and second conductor lines, May be spaced apart or spaced apart from the second spacing between the third conductor lines.
In some embodiments of the present invention, the second insulating film layer includes a plurality of holes, and at least a part of the first to fourth conductor lines may be exposed to the outside by the plurality of holes.
In some embodiments of the present invention, it further comprises a litmus film layer formed on the second insulating film layer, wherein the litmus film layer can determine the acidity or alkalinity of the contacted liquid substance.
In some embodiments of the present invention, the litmus film layer includes a plurality of sub-litmus film layers, and the plurality of sub-litmus film layers may be disposed apart from each other.
In some embodiments of the present invention, the first conductor line and the fourth conductor line may be electrically connected to each other.
In some embodiments of the present invention, the second conductor line and the third conductor line are disposed between the first conductor line and the fourth conductor line, and the second conductor line is disposed between the first conductor line and the fourth conductor line, 4 conductor line, and the third conductor line may be electrically disconnected from the first conductor line or the fourth conductor line.
In some embodiments of the present invention, the second conductor line and the third conductor line are disposed between the first conductor line and the fourth conductor line, and the second and third conductor lines are connected to the first conductor line May be electrically connected to each other.
According to another aspect of the present invention, there is provided a leakage detection sensor including first and second conductor lines, a first insulation line surrounding the first conductor line and having a first color, And a second insulation line having a second color different from the first color, wherein the first insulation line and the second insulation line are twisted in a pigtail shape.
In some embodiments of the present invention, the apparatus may further include a noise blocking line surrounding the first insulation line and the second insulation line and blocking external electromagnetic waves.
In some embodiments of the present invention, when the liquid material contacts the first insulation line, the first color may change to a third color different from the first color.
In some embodiments of the present invention, when the liquid material contacts the second insulation line, the second color may change to a fourth color different from the second color.
According to another aspect of the present invention, there is provided a leakage sensor including a base film layer extending in a first direction in a tape form, a conductor film formed on the base film layer, A noise blocking film layer formed on the base film layer in the same layer as the layer on which the conductor line is formed and shielding external electromagnetic waves and an insulation film layer formed on the conductor line and having an insulation property.
In some embodiments of the present invention, the conductor lines include first to fourth conductor lines, the first to fourth conductor lines are arranged side by side, and the first gap between the first and second conductor lines is , And may be spaced apart from the second spacing or spaced apart from the second spacing between the second and third conductor lines.
In some embodiments of the present invention, the insulating film layer includes a plurality of holes, and at least a part of the conductor lines may be exposed to the outside by the plurality of holes.
Other specific details of the invention are included in the detailed description and drawings.
The leak detecting sensor according to the technical idea of the present invention provides a configuration in which a sensor can be installed without a space limitation by using a leak detecting sensor of band, tape, or cable type.
Further, according to the leak detection sensor according to the technical idea of the present invention, it is also possible to discriminate whether the physical properties of the liquid material are acidic or alkaline.
In addition, it is possible to cover the holes exposed through the conductor line with a litmus film (test paper), thereby preventing malfunction due to external contamination.
In addition, the litmus film rapidly absorbs the leaked liquid material, and can quickly detect the leakage of the liquid material.
In addition, the litmus film can be separated into a plurality of sub-litmus films to prevent the liquid material from being transferred along the litmus film.
Further, a noise blocking film (shielding film) may be formed to prevent the sensor from malfunctioning due to external electromagnetic wave disturbance, thereby improving the durability of the leakage detection sensor.
1 is a partial perspective view of a leakage detection sensor according to an embodiment of the present invention.
2 is a cross-sectional view of a leakage detection sensor according to an embodiment of the present invention.
3 is a cross-sectional view of a leakage detection sensor according to another embodiment of the present invention.
4 is a cross-sectional view of a leakage detection sensor according to another embodiment of the present invention.
5 is a cross-sectional view of a leakage detection sensor according to another embodiment of the present invention.
6 is a layout diagram of a leakage detection sensor according to another embodiment of the present invention.
FIG. 7 is a view for explaining a method of operating a leak detection sensor according to some embodiments of the present invention.
8 schematically shows an apparatus for displaying a sensing operation of a leakage sensing sensor according to some embodiments of the present invention.
9 is a view for explaining a leakage detection sensor according to another embodiment of the present invention.
FIG. 10 is a view for explaining the configuration of the leakage detection sensor of FIG. 9; FIG.
11 is a plan view for explaining a leakage detection sensor according to another embodiment of the present invention.
12 is an exploded cross-sectional view of the connection tab of Fig.
13 is a partial cross-sectional view of a leakage detection sensor according to another embodiment of the present invention.
14 is a plan view of the leakage detection sensor of Fig.
BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
It is to be understood that when an element is referred to as being "connected to" or "coupled to" another element, it can be directly connected or coupled to another element, One case. On the other hand, when an element is referred to as being "directly coupled to" or "directly coupled to " another element, it means that it does not intervene in another element. "And / or" include each and every combination of one or more of the mentioned items.
It is to be understood that an element is referred to as being "on" or " on "of another element includes both elements immediately above and beyond other elements. On the other hand, when an element is referred to as being "directly on" or "directly above" another element, it means that it does not intervene another element in the middle.
The terms spatially relative, "below", "beneath", "lower", "above", "upper" Can be used to easily describe the correlation of components with other components. Spatially relative terms should be understood to include, in addition to the orientation shown in the drawings, terms that include different orientations of the device during use or operation. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can include both downward and upward directions. The components can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.
The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that the terms "comprises" and / or "comprising" used in the specification are intended to be inclusive in a manner similar to the components, steps, operations, and / Or additions.
Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.
Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.
Hereinafter, leakage detection sensors according to the technical idea of the present invention will be described with reference to FIGS. 1 to 14. FIG.
1 is a partial perspective view of a leakage detection sensor according to an embodiment of the present invention. 2 is a cross-sectional view of a leakage detection sensor according to an embodiment of the present invention.
1 and 2, a
The
The
A noise blocking film (shielding film)
The noise blocking film (car film)
The first
The first to fourth conductor lines 41, 42, 43 and 44 are formed on the first insulating
The first to fourth conductor lines 41, 42, 43, and 44 may be spaced apart from each other and extend in the first direction, and may be disposed in parallel with each other. The
For example, the
The
The
The second
On the other hand, when the first to fourth conductor lines 41, 42, 43, and 44 are formed, a conductive material may be further formed on the bottom of the conductor line to improve electrical conductivity. As the conductive material, pure carbon black or flakes of a metal having good electrical conductivity such as silver, copper, and platinum can be used. The conductive material may be energized immediately to confirm leakage even if a small amount of liquid material is dropped on a conductor line on the surface of the sensor, and it is preferable to use the conductive material when the sensor device should be configured sensitively.
When the leaked liquid material according to the present invention is dropped on the surface of the sensor, a large resistance existing between the
On the other hand, after confirming that leakage has occurred, it is possible to perform the function again as a sensor without removing the sensor by removing the leaked liquid material again. Therefore, it is not necessary to replace the sensor according to the occurrence of leak, and it can be used semi-permanently once installed.
Hereinafter, a leakage detection sensor according to another embodiment of the present invention will be described.
3 is a cross-sectional view of a leakage detection sensor according to another embodiment of the present invention. For the sake of convenience of description, description of portions substantially the same as those of the
3, a
The
The base
The base
4 is a cross-sectional view of a leakage detection sensor according to another embodiment of the present invention. For the sake of convenience of description, description of portions substantially the same as those of the leakage detection sensor according to some embodiments of the present invention will be omitted.
4, a leakage detection sensor 3 according to another embodiment of the present invention includes a base
The base
The
In the case where the liquid material is leaked, when it comes into contact with the
In addition, the
5 is a cross-sectional view of a leakage detection sensor according to another embodiment of the present invention. For the sake of convenience of description, description of portions substantially the same as those of the leakage detection sensor according to some embodiments of the present invention will be omitted.
5, a
The
In addition, the first noise blocking film (shielding film)
The
The third
It is made of polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), polyvinyl chloride (PVC), polyimide (PI), Glassepoxy (FR-4) . Alternatively, the third
6 is a layout diagram of a leakage detection sensor according to another embodiment of the present invention. For the sake of convenience of description, description of portions substantially the same as those of the leakage detection sensor according to some embodiments of the present invention will be omitted.
6, a
The
The first conductor lines 41 'are spirally arranged on the first insulating
Like the first conductor lines 41 ', the second conductor lines 42' are spirally arranged on the first
By the arrangement of the first conductor line 41 'and the second conductor line 42', the sensing module can constitute a sensing sensor having a certain area. Preferably, the spacing between the first conductor line 41 'and the second conductor line 42' can vary by about 3 mm or vary. This narrow spacing allows the liquid material to come into contact with the first conductor line 41 'and the second conductor line 42' at the same time when the liquid material falls due to leakage of the liquid material, 41 'and the second conductor line 42'. Therefore, when leakage of the liquid material occurs, an electrical short between the first conductor line 41 'and the second conductor line 42' occurs, the resistance value is changed, and the detection sensor controller changes the resistance value Thereby detecting the leakage of the liquid material.
In this way, when leakage of the liquid material occurs, the
For example, a plurality of
Hereinafter, with reference to FIGS. 7 and 8, a description will be given of a method of operating the leak detection sensor according to some embodiments of the present invention.
FIG. 7 is a view for explaining a method of operating a leak detection sensor according to some embodiments of the present invention. 8 schematically shows an apparatus for displaying a sensing operation mode of a leakage sensing sensor according to some embodiments of the present invention.
7, a
8, the
Such a configuration is not limited to those shown in Figs. 7 and 8, and can be modified in other deformable forms to perform a display operation.
9 is a view for explaining a leakage detection sensor according to another embodiment of the present invention. FIG. 10 is a view for explaining the configuration of the leakage detection sensor of FIG. 9; FIG.
9 and 10, a
Specifically, the
The
The
The
The
In this case, when the liquid material contacts the
According to the color change of the
11 is a plan view for explaining a leakage detection sensor according to another embodiment of the present invention. 12 is an exploded cross-sectional view of the connection tab of Fig.
Referring to FIG. 11, a leakage detection sensor according to another embodiment of the present invention is arranged to include a plate
Referring to FIG. 12, the
13 is a partial cross-sectional view of a leakage detection sensor according to another embodiment of the present invention. 14 is a plan view of the leakage detection sensor of Fig.
Referring to FIGS. 13 and 14, the fifth to
A noise blocking film (shielding film) layer 21 is formed on the sides of the fifth to
The fifth to
While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.
10: Base film layer 20: Noise blocking film layer
30: first insulating film layers 41 to 44: first to fourth conductor lines
50: second insulating film layer 60: litmus film layer
Claims (14)
A noise blocking film layer formed on the base film layer and blocking external electromagnetic waves;
A first insulating film layer formed on the noise blocking film layer and having an insulating property;
First to fourth conductor lines formed on the first insulating film layer and extending in the first direction; And
And a second insulating film layer covering at least a part of the first through fourth conductor lines,
The first to fourth conductor lines are arranged side by side,
Wherein the first gap between the first and second conductor lines is wider or spaced apart from the second gap between the second and third conductor lines.
Wherein the second insulating film layer includes a plurality of holes,
And at least a part of the first to fourth conductor lines is exposed to the outside by the plurality of holes.
Further comprising a litmus film layer formed on the second insulating film layer,
Wherein the litmus film layer determines the acidity or alkalinity of the contacted liquid material.
Wherein the litmus film layer comprises a plurality of sub-litmus film layers,
Wherein the plurality of sub-litmus film layers are disposed apart from each other.
Wherein the first conductor line and the fourth conductor line are electrically connected to each other.
The second conductor line and the third conductor line are disposed between the first conductor line and the fourth conductor line,
The second conductor line is electrically disconnected from the first conductor line or the fourth conductor line,
And the third conductor line is electrically connected to the first conductor line or the fourth conductor line.
The second conductor line and the third conductor line are disposed between the first conductor line and the fourth conductor line,
And the second and third conductor lines are electrically connected to the first conductor line.
A first insulation line surrounding the first conductor line and having a first color; And
A second insulation line surrounding the second conductor line and having a second color different from the first color,
Wherein the first insulation line and the second insulation line are twisted in a pigtail shape.
And a noise blocking line surrounding the first insulation line and the second insulation line and blocking external electromagnetic waves.
Wherein when the liquid material contacts the first insulation line, the first color changes to a third color different from the first color.
And when the liquid material contacts the second insulation line, the second color changes to a fourth color different from the second color.
Conductor lines formed on upper and lower surfaces of the base film layer and extending in the first direction;
A noise blocking film layer formed on the upper and lower surfaces of the base film layer and in the same layer as the layer on which the conductor line is formed and shielding external electromagnetic waves; And
And an insulating film layer formed on the conductor line and having an insulating property.
Wherein the conductor line includes first to fourth conductor lines,
The first to fourth conductor lines are arranged side by side,
Wherein the first gap between the first and second conductor lines is wider or spaced apart from the second gap between the second and third conductor lines.
Wherein the insulating film layer includes a plurality of holes,
And at least a part of the conductor line is exposed to the outside by the plurality of holes.
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KR1020150113571A KR101787372B1 (en) | 2015-08-12 | 2015-08-12 | Leak Sensor for Liquide leakage |
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JP2005166402A (en) * | 2003-12-02 | 2005-06-23 | Hitachi Cable Ltd | Shielded cable |
JP5964656B2 (en) * | 2012-05-28 | 2016-08-03 | タツタ電線株式会社 | Leak detection line |
CN111954844B (en) * | 2018-04-11 | 2022-05-13 | 富士胶片株式会社 | Lens for spectacles and spectacles |
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