KR101540172B1 - Device for detecting the gas leakage - Google Patents

Device for detecting the gas leakage Download PDF

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Publication number
KR101540172B1
KR101540172B1 KR1020140015133A KR20140015133A KR101540172B1 KR 101540172 B1 KR101540172 B1 KR 101540172B1 KR 1020140015133 A KR1020140015133 A KR 1020140015133A KR 20140015133 A KR20140015133 A KR 20140015133A KR 101540172 B1 KR101540172 B1 KR 101540172B1
Authority
KR
South Korea
Prior art keywords
pin
gas
main body
unit
space
Prior art date
Application number
KR1020140015133A
Other languages
Korean (ko)
Inventor
김성식
Original Assignee
김성식
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.)
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Publication date
Application filed by 김성식 filed Critical 김성식
Priority to KR1020140015133A priority Critical patent/KR101540172B1/en
Application granted granted Critical
Publication of KR101540172B1 publication Critical patent/KR101540172B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/167—Flanged joints characterised by the sealing means in connection with the appearance or detection of leaks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • 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
    • G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
    • G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/30—Detecting leaks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/038—Detecting leaked fluid

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

Provided is a gas leak detector (110) capable of simply air-tightly being coupled to a pipe fitting unit and improving reliability in confirming gas leakage. The gas leak detector (1100) comprises: a main body (123) surrounding to form a space unit (150) near a pipe (60); a first container unit (25) interposing a communication unit (180) to be installed in the main body to communicate with the space unit (150); and a second container unit (35) blocked from the space unit. More specifically, the communication unit (180) comprises: a hole (181) configured in the main body; a caulking (182) inserted into the hole; a pin (183) air-tightly inserted into the pin to be communicated with the space unit; a pin bundle (184) connected to one end of the pin to be positioned inside the first container unit; and a detect reagent (91) of the first container unit to be embedded inside the pin bundle. Therefore, setting and airtightness of the detect reagent (91) is significantly improved.

Description

Gas detection area {Device for detecting the gas leakage}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas detection unit capable of detecting a toxic gas leaking from a piping fitting part of an equipment used for manufacturing parts and devices of electronic devices such as semiconductors, LEDs, and LCDs, The present invention relates to a gas detection unit having a structure capable of simple airtight coupling and capable of improving the reliability of gas leakage confirmation.

Generally, facilities used for silicon semiconductor manufacturing process including LCD, LED, and optical device manufacturing process include nitrogen, hydrogen, Heavy gases such as halogen gas and acid gas contained in argon helium and the like are widely used.

When the harmful gas leaks from the facility, it may be a serious threat to the workers in the field workplace as well as the environmental pollution problem. In many cases, the gas leakage portion is concentrated in the fitting joint portion of the pipe in many cases.

In order to protect the workers from pollution and environmental pollution caused by the leakage of harmful gas, various structures have been developed in a simple structure capable of detecting gas leakage immediately in case of leakage of harmful gas. For example, Japanese Patent Laid-Open Publication No. 10-473178, published on March 18, 2002, and the disclosure of which is disclosed in Korean Utility Model Registration No. 20-262600.

The conventional gas sensing device is configured such that it can easily fasten a gas sensing part having a color changing in response to a leakage gas upon leakage of a gas and a gas sensing part incorporating the sensing part to a pipe fitting part, There is a problem that the reliability of the gas leakage check is deteriorated in the process of detecting the gas leakage, and the airtightness of the gas detection unit itself is deteriorated.

Korean Patent No. 10-473178 Domestic Utility Model Registration 20-262600

SUMMARY OF THE INVENTION It is an object of the present invention to provide a gas detection unit having a structure that can visually improve the reliability of gas leakage detection and can be easily detached from a pipeline.

It is another object of the present invention to provide a structure of a gas sensing element which can use various sensing elements in a compatible manner regardless of a fluid form or a sheet form.

It is still another object of the present invention to provide a structure of a gas detection unit provided with a standard detection agent capable of preparing a change in color of a detection agent.

It is still another object of the present invention to provide a structure capable of further improving the airtightness of the gas detection region.

To achieve the above object, according to the present invention, there is provided a gas detection unit comprising: a main body that surrounds a piping so as to form a predetermined space around the piping; a first support unit configured to communicate with the space through the communication unit; And a second supporting portion which is shielded by the first supporting portion and the second supporting portion, wherein the first supporting portion and the second supporting portion are each provided with a gas detecting element, and at least the first supporting portion and the second supporting portion are made transparent.

According to the embodiment of the present invention, the communication portion includes a hole formed in the main body, a caulking fitted in the hole, a pin inserted in an air-tight state in the caulking so as to communicate with the space portion, And a transparent pin bundle disposed in the first support section so as to be embedded in the transparent pin bundle, wherein a detection agent of the first support section is embedded in the transparent pin bundle.

The gas sensing element includes a main body which surrounds a space formed around a pipe of the present invention, a first support portion which is formed in the main body to communicate with the space portion via the communication portion, and a second support portion which is shielded from the space portion. In particular, the connecting portion includes a hole formed in the main body, a caulking fitted in the hole, a pin inserted in an air-tight state in the caulking so as to communicate with the space portion, The pin bundle located in the supporting portion and the detection member of the first supporting portion are contained in the pin bundle, thereby providing the gas detection region with greatly improved airtightness.

In addition, since the second support portion having the standard detection agent is provided so that the color change can be easily compared and detected by the gas leakage through the first support portion, the gas leakage can be easily and accurately recognized.

1 is a three-dimensional view showing an example of a gas detection unit of the present invention,
Fig. 2 is a sectional view showing a state in which the gas detection unit of Fig. 1 is coupled to a pipe,
Fig. 3 is a cross-sectional view showing a state in which a gas detection unit according to another example of the present invention is coupled to a pipe,
Fig. 4 is a fragmentary sectional view of Fig. 3;

Hereinafter, the technical construction and operation of the gas detection unit of the present invention will be described in detail with reference to Figs. 1 to 4. Fig.

The gas detection unit 100 of the present invention includes a main body 123 divided into two pieces of an upper main body 20 and a lower main body 30 to be fastened by locking devices 41, A first support portion 25 which is transparent to the upper body 20 and a second support portion 35 which is transparent to the lower body 30. The upper body 20 and the lower body 30 are coupled to each other by a hinge (not shown). The upper body 20 and the lower body 30 are connected to the fitting portion of the opened pipe after the locking devices 41, 42 and 43 are opened, and when the locking device is coupled again, (60). The gas sensing unit 100 of the present invention can be attached to any place of the pipe requiring gas leakage inspection, but it is preferable that the gas sensing unit 100 is attached to the position of the pipe fitting portion 61 to which the pipes are connected to each other.

A pad 70 of silicon, rubber or the like is fitted to the joint portion between the piping portion where the locking devices 41 and 43 are located and the gas sensing portion.

In particular, a space (not shown) configured to enclose the pipe fitting portion 61 and to shield it from the outside air by the engagement of the upper main body 20 and the lower main body 30 constituting the main body 123 of the gas detection unit 100 of the present invention, And a communication portion 80 is formed in the upper body 20 so that the first support portion 25 that is transparent to the space portion and the upper body 20 communicate with each other.

The communicating portion 80 may be formed by one or more holes communicating with the first supporting portion 25 on the upper body 20. [ The upper main body 20 and the lower main body 30 must be sealed with a silicone material or the like so that the space portion 150 can maintain the airtightness of the hermetically sealed state when the lancing device is fastened to the hinge engaging portion and the lancing device portion .

On the other hand, the second supporting portion 35, which is transparent to the lower main body 30, is configured not to communicate with the space portion 150 but to be shielded from the outside air. The second support portion 35 is not necessarily formed in the lower main body 30 but may be formed in the upper main body 20. [

The gas sensing members 91 and 92 are embedded in the first support portion 25 and the second support portion 35, respectively. The gas detecting agents 91 and 92 may be of any type as long as the color of the detecting agent changes when exposed to halogen gases such as fluorine, combustion, bromine, and various harmful gases. However, Is preferably used.

Therefore, the detecting agent may be selected according to the type of the gas flowing through the pipe 60 and set on the holding portion.

The detecting element 91 set on the first supporting portion 25 is configured such that when gas flowing through the piping through the piping fitting portion 61 leaks into the space portion 150, The color of the detecting agent is changed by reacting with the detecting agent 91 set on the sensor 25 so that the operator can sense the color change of the detecting agent 91 from the outside and know that the gas is leaking. The detecting member 92 set on the second supporting portion 25 is the same as the detecting member 91 set on the first supporting portion 25 and is kept in a state of being blocked from the outside air, Even if the hue of the detecting element 91 changes, the hue of the detecting element 92 in the second supporting portion does not change.

That is, when the color difference between the detecting agent 91 and the detecting agent 92 is recognized, the detecting agent 92 in the second supporting portion acts as a comparative sample showing a standard color, .

1 and 2 constructed as described above, the opening / closing lid is formed so that the detecting member 91 can be set in the first supporting portion 25. When the sealing state of the opening / closing lid is unstable, The gas leaked from the pipe through the branch portion 25 can be exposed to the outside.

In view of the above, the gas detection unit 1100 of another example having the structure of Figs. 3 and 4 will be described below.

The gas detection unit 1100 differs from the gas detection unit 100 described with reference to FIGS. 1 and 2 only in the structure of the communication unit, but the remaining technical constructions are the same.

3 and 4 includes a hole 181 formed in the main body so that the first support portion 25 and the space portion 150 communicate with each other and a silicone rubber or rubber A pin 183 which is fitted to the caulking in a hermetically sealed state to communicate with the space portion and a pin bundle 184 which is provided in one end of the pin and is located in the first loading portion 184 . The pin bundle 184 may have an internal space formed by molding injection or the like so as to communicate with the pin, and the detecting device 91 may be embedded in the internal space of the pin bundle 184 during the molding process of the pin bundle.

The pin bundle 184 and the pin 183 are integrally formed with a T-shaped structure having only an end portion of the pin opened so that the pin 183 is inserted into the center of the caulking 182, And then exposed to the space 150. It is preferable that the end of the pin 183 is cut in an inclined shape in the shape of a scan pin so as to enlarge the area communicating with the space portion and at the same time to penetrate the caulking.

Therefore, the pin bundle 184 with the detecting agent 91 inserted therein can be easily set by inserting the pin bundle 184 into the caulking 182, and the air tightness of the caulking 182 and the pin 183 leaks into the space 150 There is no fear that the gas will flow out into the first support portion 25. Further, the safety is maintained even if the airtightness between the lid 26 and the first supporting portion 25 is somewhat unstable. Of course, when the lid 26 and the first supporting portion 25 are sufficiently retained, the airtightness is doubly maintained and the stability is doubled.

The detecting member 92 embedded in the second supporting portion 35 is sealed in a hermetic state so as to be blocked from the outside air by using the lid 36. [ The lids 26 and 36 can be coupled in various forms, such as screw tightening and interference fit.

The gaseous detection region of the present invention described above is not limited to the above description and the contents shown in the drawings, and various modifications can be made without departing from the scope of the invention and the scope of the invention.

20 - upper body
25 - First support part
26,36 - Lid
30 - Lower main body
35 - second support section
41, 42, 43 -
60 - Piping
61 - Piping fitting part
70-pad
80, 180 -
91,92 - Detectors
100,1100 - Gas Inspection Earth
123 - Body
150 - space portion
181 - Hole
182 - Caulking
183 - pin
183 - Pin bundle

Claims (2)

A first support portion which is transparent to the main body to communicate with the space portion via the communicating portion and a second support portion which is shielded from the space portion and is transparent, And a gas detecting agent contained in each of the first and second holding portions,
Wherein the communicating portion includes a hole formed in the main body, a caulking fitted in the hole, a pin interposed between the caulking in an air-tight state and communicating with the space portion, And a gas detecting agent of the first holding portion is contained in the transparent pin bundle.
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KR1020140015133A 2014-02-10 2014-02-10 Device for detecting the gas leakage KR101540172B1 (en)

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KR1020140015133A KR101540172B1 (en) 2014-02-10 2014-02-10 Device for detecting the gas leakage

Publications (1)

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KR101540172B1 true KR101540172B1 (en) 2015-07-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180001145U (en) * 2016-10-17 2018-04-25 한전케이피에스 주식회사 Pipe fitting leakage detecting cap structure
WO2023153886A1 (en) * 2022-02-14 2023-08-17 주식회사 아이디케이랩 Locking device having applied thereto colorimetric sensor for detecting hazardous chemical leak

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101310297B1 (en) * 2013-03-27 2013-09-23 주식회사 비비테크 Clamp capable of checking gas leakage for vacuum pipe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101310297B1 (en) * 2013-03-27 2013-09-23 주식회사 비비테크 Clamp capable of checking gas leakage for vacuum pipe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180001145U (en) * 2016-10-17 2018-04-25 한전케이피에스 주식회사 Pipe fitting leakage detecting cap structure
KR200488531Y1 (en) * 2016-10-17 2019-02-15 한전케이피에스 주식회사 Pipe fitting leakage detecting cap structure
WO2023153886A1 (en) * 2022-02-14 2023-08-17 주식회사 아이디케이랩 Locking device having applied thereto colorimetric sensor for detecting hazardous chemical leak

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