KR101741542B1 - Airtight inspection apparatus for pipe - Google Patents

Airtight inspection apparatus for pipe Download PDF

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Publication number
KR101741542B1
KR101741542B1 KR1020150164369A KR20150164369A KR101741542B1 KR 101741542 B1 KR101741542 B1 KR 101741542B1 KR 1020150164369 A KR1020150164369 A KR 1020150164369A KR 20150164369 A KR20150164369 A KR 20150164369A KR 101741542 B1 KR101741542 B1 KR 101741542B1
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KR
South Korea
Prior art keywords
pressure
pipe
piping
space
present
Prior art date
Application number
KR1020150164369A
Other languages
Korean (ko)
Inventor
김태우
김정석
박주신
윤정석
Original Assignee
삼성중공업 주식회사
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Application filed by 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR1020150164369A priority Critical patent/KR101741542B1/en
Application granted granted Critical
Publication of KR101741542B1 publication Critical patent/KR101741542B1/en

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L13/00—Electric lighting devices with built-in electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • 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
    • G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
    • G01M3/08—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds
    • G01M3/085—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds for pipe joints or seals
    • 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
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2853—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The apparatus for measuring airtightness according to an embodiment of the present invention includes a body including a first body and a second body which are provided on both sides of a connection portion of a pipe and form a space in which the connection portion is received, A discharge device for discharging the gas inside the space to the outside in order to control the connection part, and a check hole formed on a side surface of the body part so as to confirm the connection part from the outside.

Description

{AIRTIGHT INSPECTION APPARATUS FOR PIPE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping airtightness measuring apparatus, and more particularly, to a piping airtightness measuring apparatus capable of visually checking the airtight state without varying the pressure inside the piping.

In general, a variety of piping can be used for offshore structures such as ships. For example, in the case of piping used to transport liquefied natural gas (LNG), there may be a high demand for safety to prevent accidents caused by leakage.

Therefore, it is possible to check whether the pipe is leaking by measuring the airtightness of the connection portion of the pipe, for example, the flange (FLANGE).

For example, one end of the entire piping may be sealed, and the gas may be injected into the piping through the other end so that the pressure inside the piping is greater than the pressure inside the piping and inside the measuring apparatus.

That is, when the inside of the measuring apparatus is at atmospheric pressure, if the pressure inside the pipe is higher than the atmospheric pressure, if there is a gap in the connecting portion, the gas inside the pipe can be introduced into the measuring device through the gap.

The airtightness of the piping connection can be confirmed by confirming the movement of the gas.

However, if the connecting portion having the gap is identified and the connecting portion is connected again, the remaining portion of the pipe is also moved, so that the entire piping must be measured again for airtightness.

As described above, since gas is injected into the piping every time the airtightness is measured, the measurement time may be long and the efficiency of the measurement operation may be low.

Also, since the conventional airtight measuring apparatus can not confirm whether the operator leaks the air, it is necessary to use a separate measuring instrument or sensor to determine the airtightness. Therefore, the cost of the airtight measuring apparatus may increase.

Korean Patent Publication No. 10-2015-0021153 (Publication date: 2015.03.02)

The present invention seeks to provide a piping airtightness measuring device capable of measuring the airtightness without varying the internal pressure of the piping and capable of confirming whether or not the piping leaks directly to the operator with the naked eye.

The problems of the present invention are not limited to the above-mentioned problems, and another problem that is not mentioned can be clearly understood by a person skilled in the art from the following description.

According to an aspect of the present invention, there is provided a piping system comprising: a body including a first body and a second body, the body being provided on both sides of a connection portion of the piping and defining a space for accommodating the connection portion; A discharge device for discharging the internal gas to the outside, and a check hole formed on a side surface of the body portion so that the connection portion can be externally checked.

The apparatus for measuring airtightness of a pipe according to one aspect of the present invention includes at least one pressure element provided around the opened first surface of the first body and the second body and a second pressure element provided inside the first body or the second body, And a lighting member for illuminating the space using electric power generated from the pressure element.

In addition, it may further include a protective cover covering the illumination member to protect the illumination member.

The air conditioner according to claim 1, further comprising a hermetic member provided on the first body and the second body to maintain a hermetic state between the one surface and the pipe, wherein the pressure element is disposed between the hermetic member and the first body And at least one of the hermetic member and the second body may be provided.

In addition, a bubbling agent that reacts with a specific gas to generate bubbles may be applied to the outer surface of the pipe connection portion.

The piping airtightness measuring device according to the embodiment of the present invention has the following effects.

First, by using the discharging device, the pressure of the body portion is made lower than the pressure inside the piping, so that the working efficiency can be improved as compared with the case where gas is injected into the piping to measure the airtightness.

Second, by applying the bubbling agent to the connection part and installing the check hole in the body part, the operator can visually confirm the airtightness of the connection part, so that it can be used easily.

Thirdly, by illuminating the inside of the body part by using the lighting member, it is not influenced by working environment such as indoor work or night work.

The effects of the embodiments of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 and 2 are a perspective view and an exploded perspective view of a piping airtightness measuring apparatus according to an embodiment of the present invention.
3 is a perspective view of a first body of a piping airtightness measuring device according to an embodiment of the present invention. And,
4 and 5 are a perspective view and a side sectional view of a piping airtightness measuring apparatus according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the appended drawings illustrate the present invention in order to more easily explain the present invention, and the scope of the present invention is not limited thereto. You will know.

Referring to FIGS. 1 to 3, a piping airtightness measuring apparatus according to an embodiment of the present invention includes a body 100, a discharge device 200, and an identifying device 300.

The body 100 includes a first body 110 and a second body 120 which are provided on both sides of the connection portion 60 of the pipe 50 and form a space 100a in which the connection portion 50 is accommodated, .

The body 100 includes a first body 110 and a second body 120 separated from each other and the first body 110 and the second body 120 are disposed to face each other with respect to the pipe 50 Can be combined.

That is, the first body 110 and the second body 120 may have openings 110a and 120a facing each other and may be connected to each other through a space (not shown) where the connection portion 60 of the pipe 50 can be positioned 100a can be formed.

The first body 110 and the second body 120 may have grooves formed on one side 110a and 120a of the first body 110 and the second body 120 so as to be coupled to the periphery of the pipe 50, (50) can be inserted.

Thus, the first body 110 and the second body 120 are coupled to each other through the pipe 50 and can be closely attached to the pipe 50.

The discharging device 200 may discharge the gas inside the space 100a to the outside in order to adjust the internal pressure of the space 100a of the body part 100. [

In the present invention, the pressure inside the pipe 50 is at atmospheric pressure, and the pressure in the space 100a of the body 100 can be lowered by the discharging device 200 than the atmospheric pressure. The space 100a of the body 100 may be in a vacuum state, for example. Hereinafter, the case where the space 100a of the body part 100 is in a vacuum state will be described as an example.

When the pressure in the space 100a of the body 100 is smaller than the pressure inside the pipe 50 as described above, if there is a clearance in the connecting portion 60 of the pipe 50, the gas can pass through the connecting portion 60, (100a) of the substrate (100).

This is to make the pressure of the body part 100 smaller than the pressure inside the piping 50. The effect that the body part 100 maintains the atmospheric pressure and the pressure inside the piping 50 rises to flow the gas Lt; / RTI >

However, it is easier to control the pressure of the body part 100 than to raise the pressure inside the piping 50 every time the measuring device moves, and the work efficiency of the airtight measurement work can be improved.

The confirmation tool 300 may be formed on a side surface of the body 100 so that the connection portion 60 can be seen from the outside.

The confirmation port 300 may be formed of a transparent material and may be formed of a material that is not damaged even when a pressure applied to the body 100 is transmitted or an external pressure is directly applied to the check port 300. [

For example, the check valve 300 may be formed of tempered glass. Alternatively, the confirmation tool 300 may be formed of a magnifying lens so that the operator can confirm the fine change of the connecting portion 60.

As described above, the piping airtightness measuring apparatus according to an embodiment of the present invention can visually check the state of the inside of the body part 100 through the check hole 300.

Meanwhile, the apparatus for measuring airtightness of a pipe according to an embodiment of the present invention may further include a pressure device 400.

The pressure device 400 may include a plurality of pressure devices 400 around the opened surfaces 110a and 120a of the first and second bodies 110 and 120.

The amount of power generation may vary depending on the magnitude of the pressure applied to the pressure device 400 itself.

The external pressure of the body part 100 is larger than the pressure of the space 100a of the body part 100 and the pressure element 400 can be pressurized by external pressure to generate electricity.

That is, in the present invention, when the body 100 is in a vacuum state, pressure is applied to the body 100 from the outside of the body 100, and the pressure device 400 can generate electricity using this pressure .

The process of generating the pressure element 400 will be described later in detail with reference to FIG.

The illumination unit 500 may be disposed inside the first body 110 or the second body 120 and may be provided in the pressure unit 400. [ The space 100a of the body 100 can be illuminated by using the electric power.

The illumination member 500 can be powered from the pressure device 400 through the power line, as shown in FIG. However, power supply to the illumination member 500 is not limited to the power line.

An operator can confirm the internal state of the body part 100 from the outside by inserting the confirmation part 300 in the body part 100. [ However, when the weather is blurred, the nighttime work is performed, or the illuminance of the room is low, it may be difficult to visually check the state of the connection portion 60 through the confirmation tool 300.

Therefore, in the present invention, the space 100a of the body part 100 is illuminated by using the illumination member 500, so that the measurement device can be prevented from being influenced by the working environment.

2 and 3, the illumination member 500 may be provided on the inner surface of the first body 110 facing the open side 110a of the first body 110, It may be provided on the inner side.

Alternatively, the first body 110 and the second body 120 may be provided to illuminate both sides of the connection portion 60 of the pipe 50.

The present invention may further include a protective cover 550 covering the illumination member 500 to protect the illumination member 500.

The protective cover 550 may be formed of a transparent material and the protective cover 550 may prevent the illumination member 500 from being damaged as the body 100 is pressed.

Further, the protective cover 550 can protect the illumination member 500 from bubbles to be described later.

Next, a piping airtightness measuring apparatus according to another embodiment of the present invention will be described with reference to FIGS. 4 and 5. FIG.

The piping airtightness measuring apparatus according to another embodiment of the present invention includes a body part 100, a discharging device 200, and an identifying device 300. This may be the same as or substantially similar to the body 100, the discharging device 200 and the confirmation device 300 described above with reference to Figs.

The piping airtightness measuring apparatus according to another embodiment of the present invention may further include a hermetic member 600 to increase the frictional force between the body part 100 and the piping 50 to be stably coupled.

The hermetic member 600 may be provided on one side 110a of the first body 110 and the side 120a of the second body 120 to maintain the airtight state between the first side 110a and the second side 120a and the pipe 50.

The hermetic member 600 may be formed of a material capable of reducing friction with the pipe 50, and may be, for example, a rubber.

The pressure device 400 may be provided on at least one of the hermetic member 600 and the first body 110 or between the hermetic member 600 and the second body 120.

As described above, one surface of the hermetic member 600 that contacts the pipe 50 may be formed of an elastic material to reduce friction.

On the contrary, the hermetic member 600 may be made of a rigid material rather than an elastic material, such that one surface of the hermetic member 600 in contact with the pressure device 400 is transferred to the pressure device 400 as much as possible.

4 and 5, before the airtightness of the connection part 60 is measured, the body 100 can be brought into a vacuum (F2) state by the discharge device 200 . At this time, the pressure F1 inside the pipe 50 and the pressure F3 outside the body 100 may all be at atmospheric pressure.

The external pressure F3 of the body part 100 may be greater than the pressure F2 of the space 100a of the body part 100. [

Accordingly, the first body 110 and the second body 120 can be pressed in directions opposite to each other by the external pressure F3 of the body 100. [

At this time, the pressure element 400 is generated by the pressure in the process of pressing the first body 110 and the second body 120, and the electric power generated by the pressure element 400 is applied to the illumination member 500 Lt; / RTI > Therefore, the space 100a of the body part 100 can be revealed by the illumination member 500. [

In the present invention, on the outer surface of the connecting portion 60 of the pipe 50, a bubble generating agent (not shown) which reacts with a specific gas and generates bubbles is applied so that the airtightness of the pipe 50 can be visually confirmed easily .

Therefore, when there is a gap in the connection portion 60, the gas flows into the body portion 100 from the inside of the pipe 50, and reacts with the bubble generating agent applied to the outer surface of the connection portion 60 to generate the bubble A .

Accordingly, the operator can see the bubble (A) of the connection portion (60) through the check hole (300) of the body portion (100) and judge that there is a gap in the connection portion (60).

As described above, the piping airtightness measuring apparatus according to one embodiment of the present invention and the other embodiment can improve the working efficiency, are easy to use, and may not be affected by the working environment.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. . Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

50: Piping 60: Connection
100: Body part 100a: Space
110: first body 120: second body
110a, 120a: one surface 200: discharge device
300: check valve 400: pressure element
500: illumination member 550: protective cover
600: airtight member A: air bubble
F1, F2, F3: Pressure L: Line

Claims (5)

A body including a first body and a second body, the first body and the second body being formed at both sides of a connection portion of the pipe,
A discharge device for discharging the gas inside the space to the outside in order to adjust the internal pressure of the space; And
And a check hole formed on a side surface of the body portion so that the connection portion can be seen from the outside,
And at least one pressure element provided on the first surface of the first body and the second surface of the second body for generating electricity by receiving pressure applied to the first body and the second body. The method according to claim 1,
And an illumination member provided inside the first body or the second body and illuminating the space using electric power generated by the pressure element. 3. The method of claim 2,
And a protective cover covering the illumination member to protect the illumination member. The method according to claim 1,
And a hermetic member provided on the first body and the one side of the second body to maintain a hermetic state between the one side and the piping,
Wherein the pressure element is provided in at least one of the hermetic member and the first body or between the hermetic member and the second body. The method according to claim 1,
And a bubbling agent is formed on an outer surface of the pipe connecting portion to generate bubbles in response to a specific gas.
KR1020150164369A 2015-11-24 2015-11-24 Airtight inspection apparatus for pipe KR101741542B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150164369A KR101741542B1 (en) 2015-11-24 2015-11-24 Airtight inspection apparatus for pipe

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Application Number Priority Date Filing Date Title
KR1020150164369A KR101741542B1 (en) 2015-11-24 2015-11-24 Airtight inspection apparatus for pipe

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220236133A1 (en) * 2021-01-28 2022-07-28 J-Solution Co., Ltd. Gas leakage prevention cooling box for pipe flange connection and gas leakage sensing system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200295415Y1 (en) * 2002-08-20 2002-11-25 양명석 Joint cover
JP2006125861A (en) * 2004-10-26 2006-05-18 Sumitomo Chemical Co Ltd Fluid detector, and fluid detecting method using the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200295415Y1 (en) * 2002-08-20 2002-11-25 양명석 Joint cover
JP2006125861A (en) * 2004-10-26 2006-05-18 Sumitomo Chemical Co Ltd Fluid detector, and fluid detecting method using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220236133A1 (en) * 2021-01-28 2022-07-28 J-Solution Co., Ltd. Gas leakage prevention cooling box for pipe flange connection and gas leakage sensing system
US11761841B2 (en) * 2021-01-28 2023-09-19 J-Solution Co., Ltd. Gas leakage prevention cooling box for pipe flange connection and gas leakage sensing system

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