KR20170068175A - Device for detecting gas - Google Patents

Device for detecting gas Download PDF

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Publication number
KR20170068175A
KR20170068175A KR1020150175070A KR20150175070A KR20170068175A KR 20170068175 A KR20170068175 A KR 20170068175A KR 1020150175070 A KR1020150175070 A KR 1020150175070A KR 20150175070 A KR20150175070 A KR 20150175070A KR 20170068175 A KR20170068175 A KR 20170068175A
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KR
South Korea
Prior art keywords
gas
indicator
inner space
adsorption filter
space
Prior art date
Application number
KR1020150175070A
Other languages
Korean (ko)
Inventor
박소순
이종설
오금호
김현정
Original Assignee
대한민국(국민안전처 국립재난안전연구원장)
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Application filed by 대한민국(국민안전처 국립재난안전연구원장) filed Critical 대한민국(국민안전처 국립재난안전연구원장)
Priority to KR1020150175070A priority Critical patent/KR20170068175A/en
Publication of KR20170068175A publication Critical patent/KR20170068175A/en

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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
    • G01N21/783—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 for analysing gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N1/2214—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling by sorption
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2273—Atmospheric sampling
    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N2021/0325—Cells for testing reactions, e.g. containing reagents
    • 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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N2021/0325—Cells for testing reactions, e.g. containing reagents
    • G01N2021/0328—Arrangement of two or more cells having different functions for the measurement of reactions

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)

Abstract

A gas sensing device is provided. The gas sensing device includes a transparent box having an inner space, a gas adsorption filter disposed on a first surface of the transparent box and in contact with the inner space, and a gas indicator disposed in the inner space.

Description

[0001] DEVICE FOR DETECTING GAS [0002]

The present invention relates to a gas sensing device.

Recently, accidents involving the leakage of harmful gas from chemical plants have been occurring continuously. A gas leak accident may leak a large amount of gas from the beginning, but in the early stage, a small amount of gas starts to leak and often leads to a serious accident. In this way, it is not easy to detect gas because a small amount of gas leaks in the beginning. In addition, it is possible to prevent accidents from spreading when the gas is leaked in the early stage, and to minimize the damage of human life.

In order to solve the above problems, the present invention provides a gas sensing device capable of sensing a gas leaked into the atmosphere.

Other objects of the present invention will become apparent from the following detailed description and the accompanying drawings.

A gas sensing device according to embodiments of the present invention includes a transparent box having an inner space, a gas adsorption filter disposed on a first surface of the transparent box and in contact with the inner space, and a gas indicator disposed in the inner space do.

The gas indicator in the interior space can be seen through the transparent box.

The gas outside the transparent box moves to the internal space through the gas adsorption filter, and the gas indicator may react with the gas to change color.

The gas absorption filter may include a first gas adsorption filter in contact with the first inner space and a second gas absorption filter in contact with the second inner space and the second inner space, An adsorption filter, and the gas indicator may include a first gas indicator disposed in the first inner space and a second gas indicator disposed in the second inner space.

The first gas adsorption filter and the second adsorption filter may be different from each other, and the first gas indicator and the second gas indicator may be different from each other.

The inner space may include a first inner space, a second inner space, a third inner space, and a fourth inner space which are isolated from each other. The gas adsorption filter may include a carbon dioxide gas adsorption filter contacting the first inner space, A propane-based gas adsorption filter including a methane-based gas adsorption filter in contact with the second internal space and in contact with the third internal space, and a biogas adsorption filter in contact with the fourth internal space, A carbon dioxide gas indicator disposed in the first internal space, a methane-based gas indicator disposed in the second internal space, a propane-based gas indicator disposed in the third internal space, and a biogas Indicator may be included.

The gas sensing device may further include an opening / closing part disposed on a second surface of the transparent box and opening / closing the inner space.

The gas sensing device may further include an adsorbent powder disposed in the inner space.

According to embodiments of the present invention, gas leaked into the atmosphere can be detected simply and effectively. The leaked gas can be detected even when the concentration of the leaked gas is low. It can detect not only one kind of gas but also more than two kind of gas.

1 is a perspective view of a gas sensing apparatus according to an embodiment of the present invention.
2 is a cross-sectional view taken along the line II 'of FIG.
Figs. 3 and 4 show application examples of the gas sensing apparatus of Fig.

Hereinafter, the present invention will be described in detail with reference to examples. The objects, features and advantages of the present invention will be easily understood by the following embodiments. The present invention is not limited to the embodiments described herein, but may be embodied in other forms. The embodiments disclosed herein are provided so that the disclosure may be thorough and complete, and that those skilled in the art will be able to convey the spirit of the invention to those skilled in the art. Therefore, the present invention should not be limited by the following examples.

Although the terms first, second, etc. are used herein to describe various elements, the elements should not be limited by such terms. These terms are only used to distinguish the elements from each other. In addition, when an element is referred to as being on another element, it may be directly formed on the other element, or a third element may be interposed therebetween.

The sizes of the elements in the figures, or the relative sizes between the elements, may be exaggerated somewhat for a clearer understanding of the present invention. In addition, the shape of the elements shown in the drawings may be somewhat modified by variations in the manufacturing process or the like. Accordingly, the embodiments disclosed herein should not be construed as limited to the shapes shown in the drawings unless specifically stated, and should be understood to include some modifications.

FIG. 1 is a perspective view of a gas sensing apparatus according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line I-I 'of FIG.

1 and 2, the gas sensing apparatus 100 includes a transparent box 110 having an internal space 120, a gas adsorption filter 130, a gas indicator 140, and an opening / closing unit 150 .

The transparent box 110 has an internal space 120 and is formed of a transparent polymer material so that the internal space 120 can be seen from the outside. The internal space 120 may include one or more internal spaces separated from each other. For example, the inner space 120 may include a first inner space 121, a second inner space 122, a third inner space 123, and a fourth inner space 124 that are isolated from each other . The transparent box 110 may have six faces including a first face 111 and a second face 112 in a hexahedron.

The gas adsorption filter 130 may be disposed on the first side 111 of the transparent box 110. The gas adsorption filter 130 may be one or more than two corresponding to the number of the internal spaces 120. For example, the gas adsorption filter 130 includes a first gas adsorption filter 131 in contact with the first internal space 121, a second gas adsorption filter 132 in contact with the second internal space 122, A third gas adsorption filter 133 in contact with the space 123 and a fourth gas adsorption filter 134 in contact with the fourth inner space 124. [

The gas adsorption filter 130 may function to adsorb the atmospheric gas to the gas indicator 140 in the inner space 120. The first to fourth gas adsorption filters 131, 132, 133, and 134 may be filters optimized for adsorption of different kinds of gases to detect various gases. For example, the first gas adsorption filter 131 may be a carbon dioxide gas adsorption filter optimized for adsorption of carbon dioxide gas, and the second gas adsorption filter 132 may be a methane-based gas adsorption filter optimized for adsorption of methane- The third gas adsorption filter 133 may be a propane gas adsorption filter optimized for adsorption of propane gas and the fourth gas adsorption filter 134 may be a biogas adsorption filter optimized for adsorption of biogas, Lt; / RTI >

The gas adsorption filter 130 may have various shapes and thicknesses. The gas adsorption filter 130 allows the gas in the atmosphere to enter the inner space 120 while the gas indicator 140 in the liquid or solid state in the inner space 120 is prevented from coming out of the transparent box 110 . ≪ / RTI >

The gas indicator 140 may be disposed in the interior space 120 of the transparent box 110. The gas indicator 140 may be one or more than two corresponding to the number of the internal spaces 120. For example, the gas indicator 140 includes a first gas indicator 141 disposed in the first internal space 121, a second gas indicator 142 disposed in the second internal space 122, A third gas indicator 143 disposed in the fourth inner space 124, and a fourth gas indicator 144 disposed in the fourth inner space 124. [

The gas indicator 140 may react with the gas to change its color depending on the pH value, and may be liquid or solid. The gas indicator 140 may be an indicator optimized for sensing different gases to detect various gases. For example, the first gas indicator 141 may be a carbon dioxide gas indicator optimized for sensing carbon dioxide gas, the second gas indicator 142 may be a methane-based gas indicator optimized for detection of methane- The third gas indicator 143 may be a propane-based gas indicator optimized for detection of propane-based gas, and the fourth gas indicator 144 may be a biogas indicator optimized for adsorption of biogas.

The gas indicator 140 may include one or more indicators selected from thymol blue, methyl orange, methyl red, bromothymol blue, phenol red, phenolphthalein, and universal indicator. The first to fourth gas indicator 141, 142, 143 and 144 may be the same indicator or different indicators.

The opening and closing part 150 may be disposed on the second surface 112 of the transparent box 110. The inner space 120 may be communicated with or intercepted by the opening / closing part 150. The gas indicator 140 in the inner space 120 can be replaced with a new one by opening the opening and closing part 150. [ The opening and closing part 150 may correspond to one or more than two internal spaces 120. For example, the opening and closing part 150 includes a first opening and closing part 151 for opening and closing the first internal space 121, a second opening and closing part 152 for opening and closing the second internal space 122, a third internal space 123, And a fourth opening and closing part 154 for opening and closing the fourth internal space 124. The fourth opening and closing part 154 may be formed of a metal plate.

Although not shown in the drawings, the gas sensing device 100 may further include an adsorbent powder disposed in the inner space 120 to more effectively transfer the atmospheric gas to the inner space 120. The adsorbent powder may be mixed with the gas indicator 140.

Figs. 3 and 4 show application examples of the gas sensing apparatus of Fig. The gas sensing device 100 may be used alone or in combination, or may be conveniently and effectively used in combination with various articles.

Referring to FIGS. 3 and 4, the gas sensing device 100 may be installed in a welding mask, or used in combination with a ball pen or the like. When gas is leaked from an adjacent place during on-site operation or on-site patrol of a welding operation, the leaking gas is effectively adsorbed by the gas adsorption filter 130 and moved into the transparent box 110 The leaking gas can be easily detected by discoloring the gas indicator (140 in FIG. 2). In addition, various kinds of gas can be detected by the gas sensing device (100).

Hereinafter, specific embodiments of the present invention have been described. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

100: gas sensing device 110: transparent box
120: internal space 130: gas adsorption filter
140: gas indicator 150: opening / closing part

Claims (8)

A transparent box having an inner space;
A gas adsorption filter disposed on the first surface of the transparent box and in contact with the inner space; And
And a gas indicator disposed in the interior space. The method according to claim 1,
And the gas indicator of the inner space is visible through the transparent box. The method according to claim 1,
The gas outside the transparent box moves to the internal space through the gas adsorption filter,
Wherein the gas indicator reacts with the gas to change color. The method according to claim 1,
Wherein the inner space includes a first inner space and a second inner space isolated from each other,
Wherein the gas adsorption filter includes a first gas adsorption filter in contact with the first internal space and a second gas adsorption filter in contact with the second internal space,
Wherein the gas indicator comprises a first gas indicator located in the first interior space and a second indicator located in the second interior space. 5. The method of claim 4,
Wherein the first gas adsorption filter and the second gas adsorption filter are different from each other,
Wherein the first gas indicator and the second gas indicator are different. The method according to claim 1,
Wherein the inner space includes a first inner space, a second inner space, a third inner space, and a fourth inner space, which are isolated from each other,
Wherein the gas adsorption filter includes a carbon dioxide gas adsorption filter in contact with the first internal space and a methane-based gas adsorption filter in contact with the second internal space, a propane-based gas adsorption filter in contact with the third internal space, And a biogas adsorption filter in contact with the inner space,
The gas indicator may include a carbon dioxide gas indicator disposed in the first internal space, a methane-based gas indicator disposed in the second internal space, a propane-based gas indicator disposed in the third internal space, Wherein the biogas indicator comprises a biogas indicator. The method according to claim 1,
And an opening / closing portion disposed on a second surface of the transparent box and opening / closing the inner space. The method according to claim 1,
And an adsorbent powder disposed in the inner space.

KR1020150175070A 2015-12-09 2015-12-09 Device for detecting gas KR20170068175A (en)

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KR1020150175070A KR20170068175A (en) 2015-12-09 2015-12-09 Device for detecting gas

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KR1020150175070A KR20170068175A (en) 2015-12-09 2015-12-09 Device for detecting gas

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110514659A (en) * 2019-09-25 2019-11-29 西安热工研究院有限公司 A kind of visualization carbon dioxide detection alarm system
KR102267334B1 (en) * 2020-03-30 2021-06-22 한국전력공사 Detecting method of power equipment insulator releasing gas and portable detecting apparatus using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110514659A (en) * 2019-09-25 2019-11-29 西安热工研究院有限公司 A kind of visualization carbon dioxide detection alarm system
KR102267334B1 (en) * 2020-03-30 2021-06-22 한국전력공사 Detecting method of power equipment insulator releasing gas and portable detecting apparatus using the same

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Free format text: TRIAL NUMBER: 2017101003954; TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 20170818

Effective date: 20190329

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